Pivotal sash window



Sept. 29, 1931. E. T. FISK 1,825,587

PIVOTAL SASH WINDOW Filed June 27, 1950 Patented Sept. 29, 1931 UNITED STATES ERNEST THOMAS FISK, F SYDNEY, NEW SOUTH WALES, AUSTRALIA PIVOTAL SASH WINDOW Application filed June 27, 1930, Serial No. 464,402, and in Australia July 4, 1929.

This invention relates to windows with hinge hung sashes or pivot hung sashes, and it has been devised with the object of providing facility for disposing the sash open ings to distribute and control ventilation and minimize draught, to obtain adequate protection against drift of rain and dust into the apartments, and to suppress sonic vibrations and thus to reduce transmission 19 of noise from without into apartments whilst utilizing substantially the whole area of the window opening for transmission of light.

The arrangement consists essentially of a main sash hung at its upper end and adapted to swing outward, and having one or a plurality of sub-sashes hung or pivoted on horizontal axes in the main sash, and closures between the bottom and sides of the 20 main sash and the wall front. The main sash may be fixed permanently in the outswung position, and, if desired, the side closures may be omitted.

In the accompanying drawings Fig. l is a vertical transverse section showing a main sash hung hingewise at its top end to the head of the window frame, and carrying two sub-sashes superposed and each hung hingewise at its bottom end in the main sash, and showing also a sound deflector or sound absorber baffie on the inner side of the main sash, and a closure baffle extending outward from the window sill;

Fig. 2 is a similar view of an arrangement in which two sub-sashes are hung hingewise, each in a separate main sash, the main sashes being hung at their top ends and adapted to swing similarly; and

Fig. 3 is a view similar to Fig. 1, showing a hinged main sash with a plurality of hinged sub-sashes and a plurality of sound absorber bailies.

In Fig. 1, A is the main sash and B its hinges at the head of the window opening. \Vhen this sash is not required to swing, it is fixed permanently in the outswung position which is shown in Fig. 1. C and D are respectively upper and lower sub-sashes, and E and F are the hinges by which these sub-sashes are hung.

The sub-sashes C and D may be hinged at their. top ends in the main sash A, instead of at their bottom ends as shown in the drawings. G and H are panes of glass fixed in the main sash A above the sub-sash C and below the sub-sash D respectively. J is a bafiie plate which should be constructed of a non-resonating material, but might be of glass; it may be supported by a hinge at E to permit of its being set at any desired angle between the position shown in full lines and the dropped position shown in dotted lines K. L is a curved closure plate which protects the space between the bottom of the main sash and the wall face and suppresses ascending. sound waves.

Stays (not shown) are fitted for holding the main sashes and the sub-sashes in any desired positions of adjustment. The angular spaces between the sides of the main sash and the sides of the window aperture may be filled with fixed or hinge-hung panels and these panels may be fitted with subpanels or small sashes hinge-hung for adjustment in a lateral direction.

. Fig. 3 is a vertical transverse section showing four sub-sashes P hinge-hung at their top ends in a main sash Q which is hinge-hung at its top end in the frame, and

on which the sub-sashes P are hung.

In all cases, the sub-sashes may be pivot hung in the main sashes on approximately mid-points (marked X) or at their upper ends or at their lower ends. The joints are rebated to ensure weather tightness. The sub-sashes may be fitted so that they may be swung inward or outward as shown.

The baflie plates R may be inclined upward inwardly from the hinges which carry the sub-sashes as shown in the drawings, or from other positions on the main sashes (for instance extending from the pointsX), or they may be set horizontally or downwardly inclined from the main sash instead of inclinedupwardly therefrom as shown;

and they may be angularly adjustable to enable control of admission of light to the apartment; they may be fitted in any numher required to obtain the desired measure of sound suppressing effect. The baflle plates R and the closure L may be solid or they may be perforated or louvred to permit air to pass through them, and the closure L may be fitted with a hinged panel for facilitating ventilation.

The main sashes may be fixed, the subsashes only being movable about their hinge supports, but in all cases the main sash is inclined outwardly so that whilst its top end is within the window aperture, its bottom end is at the wall face as seen in Fig. 2, or is outward of it as seen in Figs. 1 and 3. As suggested in Figs. 1 and 2 the sub-sashes are hinge-hung at their bottom ends or are pivot hung intermediate their ends; as suggested in Fig. 3 the sub-sashes are hingehung at their top ends. In Fig. 2 the space between the bottom rail of the top main sash and the top rail of the bottom main sash is filled with a horizontal panel N.

hat I claim as my invention and desire to secure by Letters Patent is 1. A window comprising a main sash adapted to be inclined downward and outward and a sub-sash fitted into the main sash, the sub-sash being adapted to swing on a horizontal axis for opening and closing, and sound suppressing panels fitted on the inner side of the main sash.

2. A window comprising a main sash adapted to be inclined downward and outward and a sub-sash fitted into the main sash, the sub-sash being adapted to swing on a horizontal axis for opening and closing, and a sound suppressing panel fitted between the bottom of the main sash and the bottom of the window aperture.

3. A window comprising a main sash adapted to be inclined downward and outward and a sub-sash fitted into the main sash, the sub-sash being adapted to swing on a horizontal axis for opening and closing and a sound suppressing panel fitted between the bottom of the main sash and the bottom of the window aperture, and having apertures therein adapted to pass air and to reduce sonic vibrations in said air.

4. A window comprising a main sash adapted to be inclined downward and outward from its upper end with a plurality of sub-sashes fitted into the main sash and adapted to swing on horizontal axes, and a plurality of sound suppressing panels extending inward from the inner side of the main sash.

A window as claimed in claim 4 in which the sound suppressing panels are adjustable about horizontal axes so. that they ma lie in various planes.

In testimony whereof I affix my signature.

ERNEST THOMAS FISK. 

